Table 3. Univariate and multivariate Cox regression models of all-cause mortality, CVD mortality and infection mortality for RDW groups (RDW>14.9% versus RDW ≤ 14.9%).

	All-cause mortality		CVD mortality		infection mortality
	Hazard ratio (95% CI)	p-value	Hazard ratio (95% CI)	p-value	Hazard ratio (95% CI)	p-value
Univariate model	2.42(1.77,3.31)	<0.001	2.45(1.26,4.76)	0.008	2.54(1.61,4.00)	<0.001
Model 1	2.29(1.67,3.13)	<0.001	2.25(1.16,4.37)	0.017	2.39(1.51,3.77)	<0.001
Model 2	2.09(1.50,2.90)	<0.001	2.25(1.16,4.37)	0.017	2.39(1.51,3.77)	<0.001
Model 3	2.18(1.56,3.03)	<0.001	2.27(1.15,4.41)	0.016	1.90(1.15,3.14)	0.012
Model 4	2.19(1.55,3.09)	<0.001	2.28(1.14,4.52)	0.019	1.90(1.15,3.14)	0.012

Univariate model: unadjusted HR for RDW.

Model 1: RDW, age, sex, BMI and smoking status.

Model 2: Model 1 plus proteinuria, albumin, BUN, calcium, cholesterol, creatinine, eGFR, hemoglobin, MCV, phosphate, platelet count, triglyceride, uric Acid, WBC count, Ca x P.

Model 3: Model 2 plus ACE inhibitor/ IARB, vitamin B12, iron preparation, folic acid supplement, calcium channel blocker, erythropoiesis stimulating agents, phosphate binder

Model 4: Model 3 plus cancer, cerebrovascular disease, chronic lung disease, congestive heart failure, coronary artery disease, dementia, DM, hypertension, hyperlipidemia, liver cirrhosis, and peripheral arterial disease